Pomegranate cuttings are the main method of breeding pomegranate seedlings. It has the characteristics of rapid emergence, rapid emergence, and high survival rate of colonization. During the growth of pomegranate seedlings, high temperature and rainy climatic conditions are prone to anthrax. If it is not controlled in time, it can cause fallen leaves, shoots, or dead seedlings, affecting the rate of gardening of pomegranate seedlings.
First, the incidence of symptoms of disease, lesions often occur in the edge and tip, irregular shape, brown-brown, disseminated black dots; branches of disease, mainly in the shoot tip, from the bottom dead.
Second, the incidence of hot and rainy weather conditions are prone to disease. The rainy season comes early and the onset is early. In summer, the onset is severe. Young branches and leaves grow weak, and partial nitrogen fertilizers are susceptible.
Third, control methods
1, control the amount of nitrogen fertilizer application, can not be partial nitrogen fertilizer. Appropriate amount of phosphorus and potassium fertilizers should be applied. The practice shows that the proportion of urea, superphosphate and compound fertilizer should be 2:3:3.
2, found that diseased or serious diseased plants in time to cut off (shear should be cut to the Ministry of Health 2 cm or less) or the removal of concentrated burned or buried, and then spraying protection.
3. Before the onset of the rainy season or when the disease occurs, use any of the following pesticides for spraying control. Green Hunter No. 1 3000 times solution or dead 1500 times solution or thiophanate-methyl 800 times solution. Spray once every 7 to 10 days for 2 to 3 consecutive times. Pesticides should be used interchangeably to avoid drug resistance.
In addition, pomegranate seedlings are more sensitive to organophosphorus pesticides, and organophosphorus pesticides are avoided as much as possible when preventing and controlling pomegranate pests and diseases.
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